Merge pull request #2373 from quant12345/scalar

Copy array element to standard python scalar

CHANGELOG.rst

@@ -15,6 +15,7 @@ Change Log
 
 [upcoming release] - 2024-..-..
 -------------------------------
+- [FIXED] copy array element to standard python scalar
 - [REMOVED] python 3.8 support
 - [CHANGED] geopandas version to >= 1.0
 - [ADDED] station controller functionality with voltage and reactive power control with and without droop and pf import support

pandapower/test/opf/test_pp_vs_pm.py

@@ -77,7 +77,7 @@ def test_case5_pm_pd2ppc():
     net["_options"]["mode"] = "opf"
     ppc = _pd2ppc(net)
     # check which one is the ref bus in ppc
-    ref_idx = int(ppc[0]["bus"][:, BUS_I][ppc[0]["bus"][:, BUS_TYPE] == REF])
+    ref_idx = int(ppc[0]["bus"][:, BUS_I][ppc[0]["bus"][:, BUS_TYPE] == REF].item())
     vmax = ppc[0]["bus"][ref_idx, VMAX]
     vmin = ppc[0]["bus"][ref_idx, VMIN]
 
@@ -87,7 +87,7 @@ def test_case5_pm_pd2ppc():
     # run pd2ppc with ext_grd controllable = True
     net.ext_grid["controllable"] = True
     ppc = _pd2ppc(net)
-    ref_idx = int(ppc[0]["bus"][:, BUS_I][ppc[0]["bus"][:, BUS_TYPE] == REF])
+    ref_idx = int(ppc[0]["bus"][:, BUS_I][ppc[0]["bus"][:, BUS_TYPE] == REF].item())
     vmax = ppc[0]["bus"][ref_idx, VMAX]
     vmin = ppc[0]["bus"][ref_idx, VMIN]
 
@@ -102,7 +102,7 @@ def test_case5_pm_pd2ppc():
     assert net.ext_grid["in_service"].values.dtype == bool
 
     ppc = _pd2ppc(net)
-    ref_idx = int(ppc[0]["bus"][:, BUS_I][ppc[0]["bus"][:, BUS_TYPE] == REF])
+    ref_idx = int(ppc[0]["bus"][:, BUS_I][ppc[0]["bus"][:, BUS_TYPE] == REF].item())
 
     vmax1 = ppc[0]["bus"][ref_idx, VMAX]
     vmin1 = ppc[0]["bus"][ref_idx, VMIN]